Automatic tool-oiler.



C. H. SHAW.

Patented Oct. 17, 1911.

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AUTOMATIC TOOL 0mm.

APPLICATION FILED AUG. 5, 1909. 1,006,300.

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AUTOMATIC TOOL OILEB. APPLICATION FILED AUG.5,1909.

Patented Oct. 17, 1911.

Pl-ANOOIIAPH co., was-mom. n. c.

CHARLES H. SHAW, 0F DENVER, COLORADO AUTOMATIC TOOL-OILER.

Specification of Letters Patent.

Patented Oct. 1'7, 1911.

Application filed August 5, 1909. Serial No. 511,400.

To all whom it may concern:

Be it known that I, CHARLES H. SHAW, a citizen of the United States,residim at Denver, in the county of Denver and tate of Colorado, haveinvented certain new and useful Im rovements in Automatic Tool- Oilers;an I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in oiling devices, andparticularly to automatic oilers for pneumatic tools.

The ob'ect in view is the arrangement of an oiler or pneumatic toolsthat will auto matically feed the proper quantity of oil to theoperating parts of the tool as the tool is manipulated.

Another object of the invention is the arrangement of an automatic oilerdesigned to constitute a connection between the tool proper and thepneumatic feed, and ar ranged so that the pneumatic feed ma force oilinto the operating part of the too when the tool is in operatlon.

A further object of the invention is th arrangement of an automaticoiler fo me with means for controlling the flow of air or other tooloperating medium, and arranged to intermittently feed predeterminedquantities of oil with the air into the moving parts of the tool.

With these and other objects in view the invention comprises certainnovel constructions, combinations and arrangements of parts as will behereinafter more fully described and claimed.

In the accompanying drawings: Figure 1 is a fragmentary side view of adrill and oiler connected therewith, the oiler being shown in section tobetter disclose the con struction thereof. Fig. 2 is a side view of theoiler shown in Fi 1 with the cap and plunger removed. ig. 3 is a sectionthrough Fig. 2, approximately on line 3-3. Fig. 4 is a section throughFig. 3 on line 44, with the cap and lunger removed. Fig. 5 is a detailview of e valve or plug.

n constructing an oiler embodying the invention the same may beconnected with the drill in an desired manner. The oiler also is arraned with means for causin the positive feed of the oil re ardless o theosition of the same, or o the osition o the drill and automatically oi sthe moving parts of the drill when the drill is in operation, and alsoautomatically prevents the flow of oil when the drill is not inoperation.

Referring to the drawing by numerals, 1 indicates a drill of any desiredkind, preferably of the type shown in my patent issued.

September 11, 1906, N 0. 830,744. Connected with the drill 1 is a valvehousing 2 having a valve member or plug 3. Housing 2 may be threaded todrill 1 or secured in any other desired manner, and is provided with agroove 4 and passage ways 5 and 6 through which the air passes into thebody part. of drill 1 for operating the moving parts thereof. Housing 2is provided with a passage way 7 which is interrupted by an opening 8into which the plug is fitted. Passage way 7 opens into a threadedpassage way 9 into which is secured a pipe from which the operatingfluid is supplied. Formed in housing 2 is a passage way divided byopening 8 into partslO and 10". Passage way 10 extends from opening 9 toopening 8, and passage way 10 extends from opening 8 to passage way 5.Passage ways 10 and 10 are arranged in line. Another passage way 12 ofthe same size as passage ways 10 and 10 is provided, but enters opening8 at an angle preferably of about 90 degrees to the general direction ofpassage ways 10 and 10". Passage way 12 extends upward through anauxiliary housing 2' and opens into chamber 13 at 14. Chamber 13 isdesigned to be filled with oil which is forced through passage way 12,and thence into passage way 15 formed in plug 3. Passage way 15 isprovided with countersunk or beveled ends 16 and 17 in order to insurethe entrance of oil from assage way 12 into passage way 15, and a so toinsure the discharge of 011 from passage way 15 into passage way 10 whenplug 3 has been turned to the position shown in Fig. 1. In Fig. 1 itwill be observed that passage ways 10, 10 and 15 are designed to be inline when the valve is open so that an oil in passage way 15 will beforced there mm by the operating fluid.

Housing 2' is made integral with housing 2, an has formed thereinchamber 13. Threaded to the outer end of housing 2 is a cap 18 which inturn has secured thereto an auxiliary cap 19 which may be easily removedfor refilling chamber 13 with oil. Positioned in chamber 13 is a spring20,

which presses against cap 18 and against a piston 21. Connecting chamber13 and passage way or opening 9 is a port or passage way 22 forpermitting operating fluid from passage way 9 to enter 'reely intochamber 13 below piston 21, and coi'isoquently give piston 21 a tendencyat all times to more toward cap 18. The movement of piston 21 toward cap18 will cause oil in chamber 13 to pass out of chamber 13 into passageway 12, and be forced into plug 3 when passage way 15 is registeringwith passage way 12. After passage way 15 has been filled the furtherflow of the oil will be prevented. When plug 3 is in such a position asto cause passage way 15 to register with passa e way 12 the valve willbe closed. W hen it is desired to again operate the valve, the handle23, which is secured to plug 3, s moved for partially rotating plug 3until passage way 15 has moved into alinement with passage ways 10 and10", whereupon the operating fluid will force oil in passage way 15 outthrough passage way 10, and through passage ways 5 and 6 to the movingparts of drill 1, the oil mixing with the operating fluid. At the sametime that passage ways 15, 10 and 10 register, passage way 24 in plug 3will register with passage way 7 in housin 2, so that an ample supply ofoperating fluid will be provided for the drill.

In constructing plug 3 the same is preferably made with a flat uppersurface positioned at a ri ht angle to t .e general direc tion of the pug, i the same a spring 25 which is hel in pos; tion by a plug 26. Apassage way 27 also as formed'in housing 2 whereby air or otheroperating fluid may pass through housing 2 to the end of the plug 3 andassist in retaining the lug upon its seat. After the various arts 0 themechanism have been assemliled and the drill is put into operation,

lug 3 will be rotated for opening and closmg the valve at shortintervals so that an intermittent supply of oil is provided for themoving parts of'the drill.

As will be observed, the invention embodies the combined valve or cookfor regulating the fluid, which may be any desired fluid as for instancecompressed air, and a lubricant for the moving parts of the drill. Uponopening the valve a small quantity of oil is forced, together with thefirst blast of air, into the moving parts of the drill, after whichnothing but air is supplied to the moving parts until the valve is againclosed. Upon the second 0 ening of the valve a second supply of oi willbe furnished the moving parts of the drill. Upon each closing, and thenopening, of the valve, a predetermined amount of oil will be supplied tothe moving parts of the drill with the operating fluld so that no oilwill be supand has pressin a ai it a b t plied when the machine is notworking, but a sullirienl supply is provided during all the time themachine is in operation because of the fuel that in practical operationof a drill of (his nature the operating lluid is turned oil and on atshort intervals. Even if the praeliral operation of the drill should notrequire frequent turning oil and on of the operating fluid, the same caneasily be turned oil and on at anytime for the purpose of su 'iplyingmore oil if necessary, withoutmaterial interference in the working ofthe drill.

What- I claim is:

1. In an automatic oiler for pneumatic tools, a. housing formed with aplurality of passage-ways extending longitudinally thereof, and a singlepassage-way extending transversely thereof. a plug mounted in saidhousing formed with a pair of parallel passage-ways registering with thelongitudinal passage-ways in said housing, an oil reservoir formed witha passage-way openin into the transverse passage-nay of said housing,and a pressure inlet passage-way, and a piston in said oil reservoirdesigned to be acted on by the operating fluid passing through saidpressure passage-way for forcing oil into said plug when one of thepassageway-s therein 18 registering with the passage-way in-,aid oilreservoir.

2. In apnemnatic tool oiler, a housing formed with two air passage waystherein, a rotatable plug mounted in said housing formed with an oilpassage way and an air passage way, the air passage way in said plugbeing designed to register with one air passage way in said housing andthe oil passage way in said plug being designed to register with theother air passage way in said housing when the valve is open, areservoir formed with a passage way designed to register with the oilpassage way in said plug when said valve is closed, and means mounted insaid reservoir continu ously actuated by the operating fluid of saidtool for causing oil to pass throu h the passsage way of said reservoirinto tie oil passage way of said plug.

3. In an automatic oiler for tools, a housing provided with a principalair passageway and an auxiliary air passage-we and an oil passage-way,an oil reservoir f brmed with an oil passageway extending therefrom,said oil reservoir being in free communication with said auxiliary airpassageway, a plug formed with an air passageway and an oil passage-way,said oil passage-way being arranged to communicate with the oilpassage-way extending from said reservoir when the plug is in a closedposition, and to communicate with the oil passage-way in said housinwhen the plug is in an open position, a piston for forcing oil from saidreservoir through the oil passage-way extendin therefrom into the oilpassa e-way in said plug when said plug is in a c osed position, saidoil in said oil passage-way in said plug being designed to be forcedthrough the Oll passage-way in said housing when said lug is in an openposition, and a spring or opposing the motion of said piston in onedirection, said iston being forced against the action 0 said spring byair from said auxiliary air passage-way.

4. In an automatic oiler for pneumatic tools, a housing formed with twoair passage ways therein, a plug formed with an oil passage way, and anair passage way, all of said passage Ways being adapted to register whensaid lug is in an open position, an oil receptacie formed with a passageway designed to register with the oil assage Way in said plug when saidpin is in a closed position, and an air actuate piston for forcing oilfrom said receptacle into the oil passage way in said plu when the pluis in a closed position regar ess of the position of the housing, saidoil in said oil passage way in said plug being designed to be forced bythe operating fluid into the tool when the plug has been turned to anopen position, said last mentioned means comprising a piston and aspring, said piston being in free communication with the fluid pressureoperating said drill, whereby the piston is forced in one direction bysaid fluig pressure and forced in the opposite directio y said springwhen the fluid pressure has been remove 5. In an automatic oiler forpneumatic tools, an oil reservoir, a iston mounted in said reservoir, ahousing ormed with a pair of passageways, one of which is desi had toadmit compressed fluid into said oi reservoir for acting on said piston,the other of said assageways acting as a discharge port for t e 011 insaid reservoir, and a plug formed with parallel passageways forcontrolling the oil and operating fluid enteri said tool, said housingbeing formed wi tfi parallel passageways registering with the parallelpassageways in said plug when said tool is in operation.

6. In an automatic oiler for pneumatic tools, an oil reservoir, a pistonmounted in said reservoir, means for normally resisting the movement ofsaid piston, a housing formed with a pair of passageways, one of whichis designed to admit compressed fluid into said reservoir, for acting onsaid piston, and the other of said passageways acting as a dischargeport for the oil in said reservoir, and a plug formed with parallelpassageways extendingl from one side to the other for controlling t eoperating fluid and oil enterin said tool, said housing being formed witparallel passageways for registering with the parallel passageways insaid plug when said tool is in operation.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES H. SHAW.

Witnesses:

CARLE WHITEHEAD, ALBERT L. Voon.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

